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Author Topic: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025  (Read 1291 times)

Offline DXrafaelcolDX

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #15 on: May 10, 2025, 0227 UTC »
 in the last weeks the best pirate signal from Northamerica listen here in Bogotá, Colombia. Thanks for the show

You can see a short video in HFU´s Facebook Page

Locator FJ24xr

At 0329 Ican received part of the waterfall
« Last Edit: May 10, 2025, 0333 UTC by DXrafaelcolDX »
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Rafael Rodriguez R
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Offline sternradio666

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #16 on: May 10, 2025, 0234 UTC »
Quote from: DXrafaelcolDX on May 10, 2025, 0227 UTC
in the last weeks the best pirate signal from Northamerica listen here in Bogotá, Colombia. Thanks for the show

You can see a short video in HFU´s Facebook Page

Locator FJ24xr
My goodness, thank you!  Hopefully you can RX the stereo signal too? Sternradio - The Wrath of Kahn! Leonard Kahn! :D
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Bitte warten, Sternradio hat technische Schwierigkeiten. Der Sender raucht. Rauchen wird dich töten.

Offline elburndx

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #17 on: May 10, 2025, 0234 UTC »
Peaking at S9+40

0234 Ritual - Ghost
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50mi west of Chicago, IL.  SDRPlay, Kenwood R-1000, Icom IC-R71A, AOR AR8200, Racal RA17 (being restored) with dual 100' inverted V's into MFJ-1026.  eQSL please to elburndx@gmail.com

Offline sternradio666

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #18 on: May 10, 2025, 0238 UTC »
Quote from: Molvania Poacher on May 10, 2025, 0219 UTC
SINPO=55444, just wow! Stereo quality sounding audio. Amazing stuff!

219- "Sick Of You" by GWAR.
222- OM synth voice IDs and talking about signal, stereo detected, etc.
222- "Everything Ends" by Slipknot.
Thanks for the stereo report!  It's been the most pointless labor of love. Perfecting the AM stereo system! :D
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Bitte warten, Sternradio hat technische Schwierigkeiten. Der Sender raucht. Rauchen wird dich töten.

Offline sternradio666

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #19 on: May 10, 2025, 0306 UTC »
Quote from: DangerKitty on May 10, 2025, 0202 UTC
0202: very strong signal, with "thumping" noise -> music "Radioactivity" - Kraftwerk
0204: QSY to 6974.6; ID in waterfall
0209: YL in GG

0210: "Kerosene" - Big Black

Thank you for the program!
Oh that image is pretty.  Watching the USB snap away while the LSB is doing it's own thing.  That's sex in RF.
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Bitte warten, Sternradio hat technische Schwierigkeiten. Der Sender raucht. Rauchen wird dich töten.

Offline Andrew Yoder

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #20 on: May 10, 2025, 0309 UTC »
Excellent signal with modern metal, etc. Because of the reminder about stereo broadcasting, I turned down the volume on my R8 & started checking KIWI SDRs. Listening now online in stereo on headphones. Very nice. I haven't listened to much stereo shortwave, just X-FM prior to this, and I'm wondering if some of the cross-channel fades might be caused by propagation and not by the stereo mix
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Offline sternradio666

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #21 on: May 10, 2025, 0310 UTC »
Quote from: Andrew Yoder on May 10, 2025, 0309 UTC
Excellent signal with modern metal, etc. Because of the reminder about stereo broadcasting, I turned down the volume on my R8 & started checking KIWI SDRs. Listening now online in stereo on headphones. Very nice. I haven't listened to much stereo shortwave, just X-FM prior to this, and I'm wondering if some of the cross-channel fades might be caused by propagation and not by the stereo mix
It's an ISB compatible system.  I can drop a channel for a moment or three!
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Bitte warten, Sternradio hat technische Schwierigkeiten. Der Sender raucht. Rauchen wird dich töten.

Offline Charlie_Dont_Surf

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #22 on: May 10, 2025, 0347 UTC »
Quote from: sternradio666 on May 10, 2025, 0310 UTC
It's an ISB compatible system.  I can drop a channel for a moment or three!

Yes, that's the only way that you would be able to do this. (That is, to have different "art" on the LSB than there is on the USB.)




0430 - Black Sabbath, very listenable on a midwest SDR, SINPO 44334. Not listenable at home on the left coast; I can clearly see the carrier on the waterfall but it's not strong enough for the necessary SNR.
0441 - ID and email address. Sign off music.
0446 - Checked back and they are gone.

Quote from: sternradio666 on May 10, 2025, 0310 UTC
The magic is getting the mix right for such that an envelope detector doesn't shit it pants!  There have been times where my phase relationships were all sorts of fucked and ISB stereo detectors could RX just fine, but regular AM receivers couldn't make out squat.  It's more like old time Ma Bell frequency division multiplexing with sub-carriers going on!  Maybe! :D

Oh, I see. Are you generating the artwork at audible frequencies and mixing it up to ~10 KHz or whatever? Or are you synthesizing the whole thing?
« Last Edit: May 10, 2025, 0448 UTC by Charlie_Dont_Surf »
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I don't STRETCH the truth.

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Offline sternradio666

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #23 on: May 10, 2025, 0408 UTC »
Quote from: Charlie_Dont_Surf on May 10, 2025, 0347 UTC
Quote from: sternradio666 on May 10, 2025, 0310 UTC
It's an ISB compatible system.  I can drop a channel for a moment or three!

Yes, that's the only way that you would be able to do this. (That is, to have different "art" on the LSB than there is on the USB.)


The magic is getting the mix right for such that an envelope detector doesn't shit it pants!  There have been times where my phase relationships were all sorts of fucked and ISB stereo detectors could RX just fine, but regular AM receivers couldn't make out squat.  It's more like old time Ma Bell frequency division multiplexing with sub-carriers going on!  Maybe! :D
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Bitte warten, Sternradio hat technische Schwierigkeiten. Der Sender raucht. Rauchen wird dich töten.

Offline Professor

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #24 on: May 10, 2025, 0409 UTC »
0409 Excellent S9+20 signal here tonight. Thanks.
0438 "K-Pax" by Kirlian Camera
0442 OM providing email address for QSLs. Playing their traditional sign-off song, "The Great Seal" by Laibach.
0446 Churchill speech and then OTA.
« Last Edit: May 10, 2025, 0446 UTC by Professor »
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Unless noted otherwise, all reports are direct from my location on Long Island NY.
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Offline Traveling Wave

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Re: Sternradio 6974.6 was 6970.6 AM 0202 UTC 10 May 2025
« Reply #25 on: May 10, 2025, 0439 UTC »
0438 UTC - Signal is S9+ in WNY, audio is excellent tonight !
0447 UTC - Off the air.
« Last Edit: May 10, 2025, 0447 UTC by Traveling Wave »
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Location: Western New York ( Niagara Frontier)
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